Alternator with front end accessory drive

Active Publication Date: 2017-09-07
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0002]A vehicle may include an alternator for converting mechanical energy into electrical energy. The electrical energy produced by the alternator may be stored in an electrical energy storage device for future consumption or the electrical energy may be consumed by electrically powered devices as the electrical energy is produced. Recently, electrical loads within the vehicle have increased and are expected to increase further as autonomous vehicles are put into production. For example, some vehicles include electrically assisted steering and electrically driven climate control systems. Autonomous vehicles may include object and distance observing sensors as well as enhanced communications sy

Problems solved by technology

Further, a speed of an engine driving the alternator may vary such that the engine drives the alternator at speeds where the alternator operates less efficient than may be desired.
Consequently, the alternator electri

Method used

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  • Alternator with front end accessory drive
  • Alternator with front end accessory drive
  • Alternator with front end accessory drive

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Embodiment Construction

[0013]The present description is related to an electric machine. The electric machine may be operated as an alternator or as a starter. The electric machine may be incorporated into a vehicle powertrain as is shown in FIGS. 1A and 1B. The alternator / starter may be configured as is shown in FIGS. 2A-4C. The alternator / starter may be operated as is shown in FIG. 5 according to the method shown in FIG. 6.

[0014]Referring to FIG. 1A, a schematic diagram of an alternator / starter in a vehicle system is shown. Vehicle 1 includes an engine 10, a controller 12, an electric energy storage device 3, and electrical power consumers 5 and 7. Electrical power consumers may include navigation systems as well as electric braking actuators, electric steering actuators, object and distance sensing devices, engine torque actuators such as electrically operated throttles, engine cooling fans, electric water pumps, and vehicle climate control systems.

[0015]Alternator / starter 17 is mechanically coupled to ...

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PUM

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Abstract

Alternator/starters and methods for providing electrical power to a vehicle and rotating an engine are disclosed. In one example, the alternator/starter provides a differential action whereby torque on an input side of the alternator may be maintained while speed of an output side of the alternator may be varied. The alternator/starter includes two armature windings and two field windings.

Description

FIELD[0001]The present description relates to systems and methods for a vehicle alternator or generator. The methods may be particularly useful for compound alternators that provide electrical power to vehicle electrical loads and transfer rotational energy from an engine to mechanically driven accessory devices.BACKGROUND AND SUMMARY[0002]A vehicle may include an alternator for converting mechanical energy into electrical energy. The electrical energy produced by the alternator may be stored in an electrical energy storage device for future consumption or the electrical energy may be consumed by electrically powered devices as the electrical energy is produced. Recently, electrical loads within the vehicle have increased and are expected to increase further as autonomous vehicles are put into production. For example, some vehicles include electrically assisted steering and electrically driven climate control systems. Autonomous vehicles may include object and distance observing sen...

Claims

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Application Information

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IPC IPC(8): H02K99/00
CPCH02K57/003H02K3/28H02K3/46H02K2203/12H02K7/1815H02K16/00H02K51/00
Inventor ELIE, LARRY DEAN
Owner FORD GLOBAL TECH LLC
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